Showing 21–32 of 32 items
The Charles Darwin Collection
The Darwin Correspondence Project is publishing letters written by and to the naturalist Charles Darwin (1809–1882). Complete transcripts of letters are being made available through the Project’s website (www.darwinproject.ac.uk) after publication in the ongoing print edition of The Correspondence of Charles Darwin (Cambridge University Press 1985–). Metadata and summaries of all known letters (c. 15,000) appear in Ɛpsilon, and the full texts of available letters can also be searched, with links to the full texts.
Sends specimens of Passiflora and seeds for T. H. Farrer [letter enclosed with 7188].
His observations on mimicry in butterflies
and self-sterility in plants.
Crossing experiments and self-sterility [in Eschscholzia].
Pangenesis.
Hermann Müller on insect adaptations for fertilisation of flowers.
CD working on book on man and sexual selection.
Mimicry in Lepidoptera.
Sexual selection.
The Franco-Prussian war.
Discussion of mimicry and sexual selection among butterflies, occasioned by reading Descent.
Opinions on Descent.
Sexual selection and mimicry in Lepidoptera; sexual selection as an aid to protective imitation.
Has no objection to CD’s alluding to FM’s idea that sexual selection has come into play in mimetic butterflies.
Reports observations on other butterflies and on termites.
Seedling vigour resulting from crossing of parents.
CD to publish work on insectivorous plants.
Thanks for two pamphlets.
Sends Thomas Belt’s [The naturalist in Nicaragua (1874)], "the best Nat. Hist. book of travels ever published".
Agrees with Bates that neuter termites are not modified imagos (sterile females), but modified larvae (of both sexes).
Systematic relations of stingless honey-bees (Melipona and Trigona) are not yet well established.
Has sent FM’s letter on termites to Nature ["Habits of various insects", Nature 10 (1874): 102–3].
Would be interested in observations on the stingless bees of Brazil.
FM gives his own observations of leaf-cutting ants, which support those of Thomas Belt in his book [The naturalist in Nicaragua (1873)]. [See 9223.] These ants feed only upon the fungus that grows upon the leaves that they carry to their nests.
He has caught a moth of the Glaucopidæ that when touched emitted a cloud of snow-white wool.
Observations on the stingless bees of Brazil.